开发和应用可生物降解PVA/NaCAS/泽奥利特复合膜用于活性包装:关于收获后保存蓝的案例研究
Melek Demirel1, Sema Samatya Yılmaz2, Selda Daler1
1Department of Horticulture, Faculty of Agriculture, Kocaeli University, Izmit, Kocaeli, Turkey.
Journal of food science
|November 22, 2025
概括
生物降解的活性包装膜与天然焦黄石改善了蓝的保质期,通过减少体重减轻和改变气体度. 5%的焦化膜比原始膜更好地保持水果的质量.
科学领域:
- 材料科学 材料科学 材料科学
- 食品科学 食品科学 食品科学
- 聚合物科学 聚合物科学
背景情况:
- 传统的塑料包装有助于环境污染.
- 越来越需要可持续和可生物降解的包装解决方案.
- 活性包装可以通过控制内部大气来增强食品的保存.
研究的目的:
- 开发和评估可生物降解的活性包装薄膜,将天然焦化物纳入聚乙醇 (PVA) / kazeinate (NaCAS) 矩阵中.
- 评估这些薄膜的结构性质和收获后性能.
- 为了确定最佳的热酸盐度,以提高蓝的保存.
主要方法:
- 在PVA/NaCAS矩阵中,制备了不同度的热 (0-10% w/w) 的薄膜.
- 使用扫描电子显微镜 (SEM) 和机械测试分析了结构性质.
- 通过将蓝存储在开发的薄膜中,并监测减肥,气体成分 (O2,CO2),总糖含量和颜色来评估收获后的表现.
主要成果:
- 5%的化石薄膜显示出均的分散和良好的机械性能 (16.7 MPa的抗拉强度,137.3%的延长).
- 与原始薄膜相比,存储在5%的地岩薄膜中的蓝体现了减轻的体重损失 (35.1%与38.1%相比) 和更好的气体控制 (8.7%O2,13.5%CO2).
- 5%的烯酸膜有助于保持总糖含量和水果颜色特征.
结论:
- 化物增强的PVA/NaCAS薄膜是传统塑料可生物降解的替代品,可延长蓝的保质期.
- 5%的热酸盐度似乎是平衡结构完整性和活性包装性能的最佳选择.
- 这些可持续的活性包装材料为易腐食品的保存提供了可行的解决方案.
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